Bash script to bulk-check if ACME HTTP webroot responses are working. Requires a file with the content "HENLO" to be present at /.well-known/acme-challenge/test.txt

0_acme-test.sh

#!/bin/bash
# Checks whether given domain has a file at .well-known/acme-challenge/test.txt
# with content "HENLO", for HTTP and HTTPS.
# Pass -q to hide the curl progress bar.

QUIET=""
RED="\e[31m"
GREEN="\e[92m"

if [ "$#" -lt 1 ] || [ "$#" -gt 2 ]; then
  echo "$0 [-q] DOMAIN"
  exit 1
elif [ "$1" == "-q" ]; then
  if [ "$#" -lt 2 ]; then
    echo "$0 [-q] DOMAIN"
    exit 1
  fi
  DOMAIN="$2"
  QUIET="-s"
else
  DOMAIN="$1"
fi

CURL="$(which curl)"
PATH=".well-known/acme-challenge/test.txt"

#echo "  Testing for HTTP..."
HTTP_RES="$($CURL $QUIET -L http://$DOMAIN/$PATH)"
if [ "$HTTP_RES" != "HENLO" ]; then
  echo -e "$RED  ... $DOMAIN HTTP failed! Result: $HTTP_RES"
  exit 2
else
  echo -e "$GREEN  ... $DOMAIN HTTP is ok."
fi

#echo "  Testing for HTTPS..."
HTTPS_RES="$($CURL $QUIET -L https://$DOMAIN/$PATH)"
if [ "$HTTPS_RES" != "HENLO" ]; then
  echo -e "$RED  ... $DOMAIN HTTPS failed! Result: $HTTPS_RES"
  exit 2
else
  echo -e "$GREEN  ... $DOMAIN HTTPS is ok."
fi

1_all_acme_tests.sh

#!/bin/bash
# Runs acme-test.sh for each domain in a Let's Encrypt renewal file.
# These are located at /etc/letsencrypt/renewal/example.com.conf

RED="\e[31m"
GREEN="\e[92m"

if [ "$#" -ne 1 ]; then
  echo "$0 RENEWAL_CONFIG_FILE"
  exit 1
fi

sed -n '/\[\[webroot_map\]\]/,$p' $1 | \
  grep -P -o '(.+)(?= = \/var\/www\/letsencrypt)' | \
  xargs -L 1 ./acme-test.sh -q

TEST_RESULT="$?"

if [ "$TEST_RESULT" -ne 0 ]; then
  echo -e "$RED[ERROR] One or more tests failed (code $TEST_RESULT). Check the output."
  exit 123
else
  echo -e "$GREEN[SUCCESS] All tests passed."
  exit 0
fi

2_LICENSE.txt

        DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
                    Version 2, December 2004 

 Copyright (C) 2004 Sam Hocevar <sam@hocevar.net> 

 Everyone is permitted to copy and distribute verbatim or modified 
 copies of this license document, and changing it is allowed as long 
 as the name is changed. 

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 

  0. You just DO WHAT THE FUCK YOU WANT TO.